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Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
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| | | | Joined: Sep 2008 Posts: 93 Shop Shark | | Shop Shark Joined: Sep 2008 Posts: 93 | When I back off the gas @30-40 mph the engin sounds like a jake brake...Please tell me it's simple and not the valves...Not much of a engin guy...Thanks Paul | | | | | Joined: Jan 2001 Posts: 5,337 'Bolter | | 'Bolter Joined: Jan 2001 Posts: 5,337 | I would start by checking the timing and vacuum advance.
See the USA in your vintage Chevrolet! My Blog | | | | | Joined: Oct 2002 Posts: 4,066 Bolter | | Bolter Joined: Oct 2002 Posts: 4,066 | does it take off really good...........if so probab ly not the valves...........is it back firing or just slowing down..
jake brakes, interesting..............
Redryder pixMy HotrodA veteran - whether active duty, retired, national guard, or reserve - is someone who, at one point in his or her life, wrote a blank check made payable to The 'United States of America', for an amount of "up to and including my life."I am fighting cancer and I am winning the fight | Pain is part of life; misery is an option. | | | | | Joined: Aug 2005 Posts: 6,377 Ex Hall Monitor | | Ex Hall Monitor Joined: Aug 2005 Posts: 6,377 | Often popping out and backfiring on deceleration is a sign of a lean condition and/or exhaust leak.
Save a life, adopt a senior shelter pet.
The three main causes of blindness: Cataracts, Politics, Religion.
Name your dog Naked so you can walk Naked in the park.
| | | | | Joined: Jun 2004 Posts: 8,597 Riding in the Passing Lane | | Riding in the Passing Lane Joined: Jun 2004 Posts: 8,597 | Its not the valves. It probably is a vacuum leak or the idle mixture screw is lean like Tiny says. We used to turn the idle jets way in when I was young. Then wind it up in 2 nd. gear & back out of it. It would back rap. We thought that was cool.
They say money can't buy happiness. It can buy old Chevy trucks though. Same thing. 1972 Chevy c10 Cheyenne SuperIn the Gallery Forum | | | | | Joined: Sep 2008 Posts: 93 Shop Shark | | Shop Shark Joined: Sep 2008 Posts: 93 | Thanks Guys, my heart slowed down a lot... will try both when my brother don't suspect a thing,I will get him to do the dance for me! | | |
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